General Description

The 73M2901C/5V is a single-chip modem that combines all the controller (DTE) and data pump functions necessary to implement an intelligent V.22bis data modem. This device is based on Teridian Semiconductor’s implementation of the industry standard 8032 microcontroller core with a proprietary multiply and accumulate (MAC) coprocessor; Sigma-Delta A/D and D/A converters; and an analog front end. The ROM and RAM necessary to operate the modem are contained on the device. Additionally, the 73M2901C/5V provides an on-chip oscillator and Hybrid driver.


  • True one chip solution for embedded systems
  • Low operating power
  • ~250mW @ 5V with standby and power down mode available
  • Designed for +5 Volts (+/- 10%)
    • Data speed:
      V.22bis – 2400bps
      V.22/Bell212 – 1200bps
      V.21/Bell103 – 300bps
      V.23 – 1200/75bps (with PAVI turnaround)
      Bell202 – 1200bps
      Bell202/V23 4-wire operations
  • International Call Progress
  • support FCC68, CTR21, JATE…
  • Worldwide Caller ID capability
  • DTMF generation and detection
  • On chip hybrid driver
  • Blacklisting capability
  • Line-In-Use and Parallel Pick-Up (911) detection capability
  • Manufacturing Self Test capability
  • 32 pin PLCC / 44 pin TQFP